Etoricoxib Impurity 10 CAS 349536-41-0
| CAS No. | 349536-41-0 |
| Molecular Formula | C18H15ClN2O3S |
| Molecular Weight | 374.84 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 374.84 g/mol gives Etoricoxib Impurity 10 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Etoricoxib Impurity 10 (CAS 349536-41-0), a certified reference material (molecular formula C18H15ClN2O3S, MW 374.84 g/mol) for analytical method development and quality control.
Owing to a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution, Etoricoxib Impurity 10 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 374.84 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C18H15ClN2O3S |
| Molecular Weight | 374.84 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Etoricoxib Standards
- Etoricoxib Impurity 1 (CAS 325855-74-1)
- Etoricoxib Impurity 24 (CAS 325855-71-8)
- Etoricoxib Impurity 10 (CAS 646459-45-2)
- Etoricoxib Impurity 85 (CAS CATO-C4X-108085)
- Etoricoxib Impurity 26 (CAS CATO-C4X-108026)
- Etoricoxib Impurity 34 (CAS CATO-C4X-108034)
- Etoricoxib Impurity 8 (CAS 646459-39-4)
- Etoricoxib D4 (CAS 1131345-14-6)
Recommended Standards
- 5-(2-Chlorophenyl)-4-((2,4-dimethoxybenzylidene)amino)-4H-1,2,4-triazole-3-thiol (CAS 352329-58-9)
- 4-(4-Chloro-2-methylphenoxy)-5-methanesulfonyl-2-phenylpyrimidine (CAS 478080-90-9)
- 3-(5-Chlorothiophen-2-yl)-N'-(2-ethoxybenzylidene)-1H-pyrazole-5-carbohydrazide (CAS 303106-95-8)
- Etizolam Impurity 29 (CAS CATO-C4X-350929)
- 2-(Diethylamino)-N-ethyl-5-hydroxy-6-iodo-7-(1H-pyrrol-1-yl)benzo[d]thiazole-4-carboxamide (CAS 2230058-99-6)
- Tert-butyl 4-ethoxy-3-oxobutanoate (CAS 74530-58-8)
- 4-Chloro-2-(piperidin-1-yl)phenol (CAS 1881296-76-9)
- Tiropramide Impurity 1 (CAS 22934-58-3)
- 2-(Methoxy-d3)pyrimidine-5-boronic acid (CAS 2241867-45-6)
- 1,2,3,4-Tetrahydropyrido[4,3-b][1,6]naphthyridine (CAS 387358-40-9)
- Pentachlorobenzoylchloride (CAS 1825-23-6)
- 4,4-Dimethyl-2-(pyridin-2-yl)pentan-1-amine (CAS 1306605-97-9)
- 1-(4-(3,5-Diphenyl-4,5-dihydro-1H-pyrazol-1-yl)phenyl)ethanone (CAS 90447-34-0)
- Peptide 439 (CAS CATO-CPTD788439)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com